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  1. The programme framework is ready
  2. Venue stood the test
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  5. Oslo's new signature
  6. POLARCAT won the race for first proposal
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  15. Steven Chown to be awarded the Martha T Muse Prize at IPY-OSC
  16. The IPY ‘From Knowledge to Action’ Conference to be held in Montreal in 2012
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  27. RV Oceania to Oslo for IPY-OSC
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  32. Draft programme ready
  33. HRH Crown Prince Haakon will open the IPY-OSC 2010
  34. HSH Prince Albert II of Monaco will attend the conference
  35. 9th June Keynote: Katherine Richardson
  36. 10th June Keynote: Ole Henrik Magga
  37. Tinker Foundation travel grants for Latin American participants
  38. 11th June Keynote: David Barber
  39. 12th June Keynote: Alexander Frolov
  40. 2200 have registered so far
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  42. PolarEXCHANGE with Sue Nelson
  43. Patrick Webber awarded with the first IASC Medal
  44. Arctic sea ice cover heading towards another record low?
  45. Teachers and young scientists join forces in Oslo
  46. Making marfu and melting ice
  47. Preparing for tomorrows polar science
  48. Launch of the Polar Information Commons (PIC) Tuesday afternoon
  49. Cruising the Oslo Fjord for polar history
  50. Warm opening of a cool conference
  51. A territory of dialogue
  52. From policy to action
  53. Signing agreement for cooperation
  54. Rising sea levels on the agenda
  55. Prestigious prize for work in Antarctica
  56. Polar expedition to the FRAM Museum
  57. More cold and snowy winters to come
  58. Arctic and Antarctic partners sign agreement on polar education
  59. Medal for science and inspiring mentorship
  60. Science should incorporate indigenous knowledge
  61. A road movie on ice
  62. Data on ice loss in the Arctic Ocean can be misleading
  63. On the making of polar documentaries
  64. Encounters on Polar Street
  65. Morning plenary: Vladimir Kattsov
  66. International Polar Year officially closed
  67. Survey shows Norwegians believe in science
  68. 1st Circular out for IPY 2012 MONTRÉAL
  69. 2nd Circular out for IPY 2012 in Montreal
  70. Reminder: Call for abstracts
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  72. Updating the IPY Publications Database for the IPY 2012 Conference in Montreal
  73. Time to register for the IPY 2012 conference
 

More cold and snowy winters to come

286x135_Spitsbergen (Ingressbilde)

A warmer Arctic climate is influencing the air pressure at the North Pole and shifting wind patterns on our planet. We can expect more cold and snowy winters in Europe, eastern Asia and eastern North America.

"Cold and snowy winters will be the rule, rather than the exception," says Dr James Overland of the NOAA/Pacific Marine Environmental Laboratory in the United States. Dr Overland is at the International Polar Year Oslo Science Conference (IPY-OSC) to chair a session on polar climate feedbacks, amplification and teleconnections, including impacts on mid-latitudes.

Loss of sea ice causes major climate change
Continued rapid loss of sea ice will be an important driver of major change in the world's climate system in the years to come. Changes in the Arctic climate will bring more cold and snowy winters in the northern hemisphere in the years to come, says Dr. James Overland.Photo: John Petter Reinertsen
Changes in the Arctic climate will bring more cold and snowy winters in the northern hemisphere in the years to come, says Dr. James Overland.


"While the emerging impact of greenhouse gases is an important factor in the changing Arctic, what was not fully recognised until now is that a combination of an unusual warm period due to natural variability, loss of sea ice reflectivity, ocean heat storage and changing wind patterns working together has disrupted the memory and stability of the Arctic climate system, resulting in greater ice loss than earlier climate models predicted," says Dr Overland.

"The exceptional cold and snowy winter of 2009-2010 in Europe, eastern Asia and eastern North America is connected to unique physical processes in the Arctic," he says.

Irreversible change
The Arctic is warming more than twice as fast as the rest of the planet. This is known as Arctic amplification - a much debated phenomenon at the IPY-OSC, where 2400 polar scientists have gathered to discuss the huge amount of research and new findings which are the direct result of the International Polar Year.

The changes are happening a great deal faster than the scientific community expected. Given the recent reduction of the area of multi-year sea ice and reduced ice thickness, it is unlikely that the Arctic can return to its previous condition.

"The changes are irreversible," says Dr Overland.

A landmark event

"The IPY Oslo Science Conference is a landmark event in our understanding of the Arctic climate," says Dr Overland, who is chairing one of the sessions on climate at the conference. More than 80 scientific papers have been submitted discussing Arctic amplification and its impacts.

Last updated: 11.06.2010